Buggy code:
public class Example { private static String refineryId = "" ; private static String currentContext ; private static String currentRequest ; private static String currentInput ; private static String currentWork ; private static Example . ExampleWorker worker ; private static int [ ] [ ] context ; private static int round = 0 ; private static final double minimalValue = 1.0E-11 ; public static void main ( String [ ] args ) { } public static String arrayToCSV ( double [ ] a ) { } private static int [ ] getValues ( String line ) { } private static double [ ] normalizeDistribution ( double [ ] distribution ) { } private static double [ ] getDistributionCloseTo ( int value ) { } private static double [ ] getDistribution ( double probabilityOfZero , double probabilityOfMostFrequent , double probabilityOfMax , double probabilityOfMin , int mostFrequent , int minimum , int maximum ) { } private static double [ ] dependingOnSixtyFive ( int row ) { } private static double [ ] dependingOnFiftyNine ( int row ) { } private static double [ ] basedOnSixteen ( int row ) { } private static double [ ] dependingOnSixteen ( int row ) { } private static double [ ] dependingOnFifty ( int row ) { } private static double [ ] dependingOnHundredTwentySix ( int row ) { } private static double [ ] betweenTenAndOneThousand ( ) { } private static double [ ] zeroColumns ( ) { } private static double [ ] sixteen ( ) { } private static double [ ] sixtyFive ( ) { } private static double [ ] fiftyNine ( ) { } private static double [ ] fifty ( ) { } private static double [ ] hundredTwentySix ( ) { } private static double [ ] getDistribution ( int row ) { } public static class ExampleWorker extends Thread { @ Override public void run ( ) { double [ ] [ ] myGuess = new double [ 1000 ] [ 100 ] ; File inputDir = new File ( Example . currentInput ) ; File inputFile = inputDir . listFiles ( ) [ 0 ] ; try { Scanner s = new Scanner ( inputFile ) ; File outputDir = new File ( ( ( Example . currentWork ) + "//output" ) ) ; if ( ! ( outputDir . exists ( ) ) ) { outputDir . mkdir ( ) ; } File outputFile = new File ( outputDir , "output.csv" ) ; PrintWriter pw = new PrintWriter ( outputFile ) ; int row = 0 ; if ( ( ( Example . round ) ++ ) == 0 ) { Example . context = new int [ 303 ] [ 1000 ] ; for ( double [ ] vector : myGuess ) { if ( Thread . currentThread ( ) . isInterrupted ( ) ) { throw new InterruptedException ( ) ; } vector = Example . getDistribution ( row ) ; row ++ ; } } else { <START_BUG> Example . context [ ( ( Example . round ) - 1 ) ] = Example . getValues ( s . nextLine ( ) ) ; <END_BUG> for ( int i = 0 ; i < 1000 ; i ++ ) { myGuess [ i ] = Example . getDistribution ( row ) ; row ++ ; } } for ( double [ ] vector : myGuess ) { if ( Thread . currentThread ( ) . isInterrupted ( ) ) { throw new InterruptedException ( ) ; } pw . println ( Example . arrayToCSV ( vector ) ) ; } pw . close ( ) ; s . close ( ) ; System . out . println ( ( ( ( ( "READY\t" + ( Example . currentRequest ) ) + "\t" ) + ( Example . currentWork ) ) + "//output//output.csv" ) ) ; } catch ( InterruptedException e ) { System . out . println ( ( "ABORTED\t" + ( Example . currentRequest ) ) ) ; } catch ( Exception e ) { System . err . println ( ( "Oops,<seq2seq4repair_space>" + ( e . getMessage ( ) ) ) ) ; e . printStackTrace ( ) ; System . out . println ( ( ( ( ( "FAILED\t" + ( Example . currentRequest ) ) + "\t" ) + ( Example . currentWork ) ) + "//output//output.csv" ) ) ; } } public void cancel ( ) { } } }

Fix:
Example . context [ ( ( Example . round ) - 2 ) ] = Example . getValues ( s . nextLine ( ) ) ;